// A RDFAnnotationParser can modify a contextObject which is an ModelHistory instance.
// When this parser is parsing the model history, some rdf attributes can appear. Try to
// read them.
else if (contextObject instanceof History) {
History modelHistory = (History) contextObject;
isReadAttribute = modelHistory.readAttribute(elementName, attributeName, prefix, value);
}
// A RDFAnnotationParser can modify a contextObject which is an ModelCreator instance.
// If the contextObject is a ModelCreator instance, the rdf attributes should appear in the
// 'li' subelement of the 'Bag' subelement of the 'creator' node.
// When this parser is parsing the model history, some rdf attributes can appear. Try to